Thermoplastic/thermoset multilayer composites: A way to improve the impact damage tolerance of thermosetting resin matrix composites

2017 ◽  
Vol 171 ◽  
pp. 298-305 ◽  
Author(s):  
Camille Sonnenfeld ◽  
Hakima Mendil-Jakani ◽  
Romain Agogué ◽  
Philippe Nunez ◽  
Pierre Beauchêne
Keyword(s):  
Damage Tolerance ◽  
Impact Damage ◽  
Resin Matrix ◽  
Matrix Composites ◽  
Thermosetting Resin ◽  
Multilayer Composites ◽  
The Impact

Comparison of the impact damage resistance of non-hybrid and intra-ply hybrid carbon/E-glass/polypropylene non-crimp thermoplastic composites

2018 ◽  
Vol 38 (1) ◽  
pp. 31-45 ◽  
Author(s):  
Gaye Kaya
Keyword(s):  
Damage Tolerance ◽  
Impact Damage ◽  
Low Velocity Impact ◽  
Thermoplastic Composites ◽  
Low Velocity ◽  
Impact Properties ◽  
Compression After Impact ◽  
Post Impact ◽  
The Impact ◽  
Hybrid Carbon

This study aims to compare the low-velocity impact and post-impact properties of intra-ply hybrid carbon/E-glass/polypropylene non-crimp thermoplastic composites with non-hybrid carbon/PP and E-glass/PP non-crimp thermoplastic composites. Impact test was performed at four energy levels as 15 J, 30 J, 45 J and 60 J. Post-impact properties of hybrid thermoplastic composites were tested by compression after impact method for each energy level to understand the impact damage tolerance of intra-ply hybrid carbon/E-glass/PP non-crimp thermoplastic composites. The effect of hybridization on energy absorption of composites was not significant, while C-scan results showed that the intra-ply hybrid non-crimp thermoplastic composites had smaller impact damage areas in comparison to the non-hybrid samples. Compression and compression after impact tests results confirmed that the intra-ply hybridization increased the toughness of the composite laminates. Also, the residual compression strength/modulus increased with hybridization which indicated to damage tolerance.

Preparation and Microwave Absorbing Property of Microwave Absorbers with FSS Embedded in Multilayer Composites

2006 ◽  
Vol 11-12 ◽  
pp. 501-504 ◽  
Author(s):  
Dong Lin Zhao ◽  
Jing Wei Hou ◽  
Hai Long Zhang ◽  
Zeng Min Shen
Keyword(s):  
Material Design ◽  
Frequency Selective Surface ◽  
Resin Matrix ◽  
Matrix Composites ◽  
Structural Composites ◽  
Microwave Absorbing Materials ◽  
Multilayer Composites ◽  
Absorbing Materials ◽  
Microwave Absorbing ◽  
Absorbing Property

In this paper, we present the experimental results of microwave absorbing materials with a frequency-selective surface (FSS) embedded in the multilayer structural composites. Microwave absorbing materials with the FSS pattern embedded in multilayer structural epoxy resin matrix composites were fabricated. The effects of the FSS on multilayer structural composites for microwave absorbing material design have been investigated. Comparisons were made with the microwave absorptions of the multilayer composites with FSSs of different positions in composites. The microwave absorption properties of the multiplayer composites samples with FSSs are higher than those of the samples without FSSs. The experiment results show that the incorporation of a FSS can effectively change the reflection property of the composite.

scholarly journals Improvement of Impact Damage Resistance of Epoxy-Matrix Composites Using Ductile Hollow Fibers

2013 ◽  
Vol 8 (1) ◽  
pp. 155892501300800
Author(s):  
Mohammad Nasr-Isfahani ◽  
Masoud Latifi ◽  
Mohammad Amani-Tehran
Keyword(s):  
Impact Damage ◽  
Fiber Composites ◽  
Filament Winding ◽  
Low Velocity Impact ◽  
Impact Behavior ◽  
Experimental Investigations ◽  
Matrix Composites ◽  
Transverse Impact ◽  
Low Velocity ◽  
The Impact

Fiber reinforced polymer structures typically respond very poorly to transverse impact events. In this study, some experimental investigations are performed on the low velocity impact behavior of unidirectional hollow, solid and hybrid (hollow/solid) polyester fiber composites. The materials are fabricated in a curved shape using filament winding method. The impact tests are applied on the simply supported specimens by a drop weight impact test apparatus at five levels of energy. To present a proper comparison on the results, the various densities of the materials are considered as normalizing coefficients. It is observed that in the hollow fiber composites cracks appear at an appreciably higher amount (93%) of impact energy than the solid ones.

Evaluation of Impact Damage Resistance in Laminated Composites Using Resins with Different Crosslink Densities

1996 ◽  
Vol 434 ◽  
Author(s):  
A. J. Lesser
Keyword(s):  
Fracture Toughness ◽  
Molecular Weight ◽  
Composite Laminates ◽  
Impact Damage ◽  
Laminated Composites ◽  
Resin Matrix ◽  
Low Velocity ◽  
Compression After Impact ◽  
Overall Resistance ◽  
The Impact

AbstractIt is generally recognized that fiber-reinforced laminated composites are susceptible to damage resulting from low-velocity impacts. Over recent years, many strategies have been devised to increase the fracture toughness of resin matrix materials with the aim of improving the composites overall resistance to impact damage. One popular strategy for enhancing the fracture toughness of thermosets involves increasing its molecular weight between crosslinks which, in turn, enhances the resins ductility. In this paper, we investigate the efficiency of this toughening approach with regard to resisting damage in composite laminates subjected to lowvelocity impacts. Generic damage characteristics and mechanisms are reviewed and it is shown that two different events occur during the impact process. First, the laminate experiences a local failure which resembles a Hertzian fracture process followed by subsequent delamination between the plies. Results are presented illustrating the effects that systematically increasing the molecular weight between crosslinks of the resin has on each of these mechanisms. Also, the residual compressive strength (Compression After Impact) of the laminates made with these resins is presented.

Impact Damage Tolerance and Fatigue Durability of GLARE Laminates

2008 ◽  
Vol 130 (4) ◽  
Author(s):  
Hyoungseock Seo ◽  
H. T. Hahn ◽  
Jenn-Ming Yang
Keyword(s):  
Residual Strength ◽  
Impact Test ◽  
Damage Tolerance ◽  
Impact Damage ◽  
Fatigue Behavior ◽  
Energy Levels ◽  
Damage Initiation ◽  
Fatigue Durability ◽  
Weight Impact ◽  
The Impact

The fatigue behavior and residual strength of postimpacted GLARE 4-3/2, GLARE 5-2/1, and monolithic aluminum 2024-T3 alloy were investigated experimentally. Drop-weight impact was applied at a variety of energy levels to inflict a barely visible impact damage, a clearly visible impact damage, and a penetration damage. After the impact test, constant-amplitude tension-tension fatigue was done to delineate the modes of damage initiation and growth and the effect of damage on fatigue life and residual strength. The results showed that GLARE laminates exhibit superior postimpact fatigue durability when compared with the monolithic 2024-T3 aluminum alloy.

A Study on Low-Velocity Impact Characteristics and Compression Strength after Impact of Ceramic/Resin Matrix Composites

2010 ◽  
Vol 118-120 ◽  
pp. 226-230
Author(s):  
Xiang Zheng ◽  
Xiao Yan Tong ◽  
Hao Chen ◽  
Lei Jiang Yao
Keyword(s):  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Low Velocity Impact ◽  
Resin Matrix ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Characteristics ◽  
The Impact

An experimental study of low-velocity impact characteristics and strength after impact was carried out on both woven fiber-reinforced resin matrix composites and woven fiber-reinforced ceramic matrix composites. The test specimens were impacted using a dropped-weight impact test apparatus with an instrumented spherical tip. Ultrasonic C-scan was used in nondestructive testing to characterize and quantify the impact damage. Much more damage of ceramic matrix composites than that of resin matrix composites occur and process in loading stage. The peak load of resin matrix composites is higher than that of ceramic matrix composites. According to the results of observing optical photographs and C-scan images, the damage area of ceramic matrix composites is greater than that of resin matrix composites and the difference increases as the energy increases. Damage resistance of ceramic matrix composites is lower than that of resin matrix composites, but damage tolerance of ceramic matrix composites is higher than that of resin matrix composites.

scholarly journals Effect of Metallic Additives to Polymer Matrix on Properties of Composite Adhesives Dedicated for Light Metal Joining

2017 ◽  
Vol 62 (4) ◽  
pp. 2287-2294 ◽  
Author(s):  
A. Mamala ◽  
P. Kwaśniewski ◽  
A. Nowak ◽  
J. Grzebinoga ◽  
W. Ściężor ◽  
...  
Keyword(s):  
Physical And Mechanical Properties ◽  
Light Metal ◽  
Resin Matrix ◽  
Matrix Composites ◽  
Solar Panels ◽  
Correct Operation ◽  
Photovoltaic Panel ◽  
Polymer Metal ◽  
Experimental Findings ◽  
The Impact

AbstractThe most recent and promising trends in development of renewable sources of energy are Combined Heat and Power (CHP) systems. The newest solutions from this field are hybrid compact solar panels. The correct operation of both systems, i.e. the photovoltaic panel and the heat exchanger requires an effective connection between the two. The adhesives utilized to interconnect above elements should provide a stable and hermetic joint able to withstand mechanical and thermal impacts of the surrounding environment factors. The paper presents the research results over the impact of the type and the amount of reinforcing phase on the physical and mechanical properties of epoxy resin matrix composites reinforced with particles of non-ferrous metals (Ag, Cu, W, Al), dedicated as adhesives for connections between photovoltaic panels and heat exchangers. Based on the experimental findings the usefulness of classical analytic models for valuation of polymer-metal composites properties was validated.

scholarly journals Study on Impact Resistance of C/SiC Ceramic Matrix Composites for Thermal Protection of the Aerospace Vehicle

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Ye Lin ◽  
Bin Liu
Keyword(s):  
Residual Strength ◽  
Structural Integrity ◽  
Thermal Protection ◽  
Impact Damage ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Structure Design ◽  
Matrix Composites ◽  
Sic Composites ◽  
The Impact

This paper evaluates the impact damage tolerance of ceramic matrix composites and contrasts their tensile and compression strengths under impact and nonimpact conditions. The representative C/SiC composites from PIP are examined under the dropped tip system. In this paper, the surface impact test of C/SiC composites is carried out. By testing a series of specimens of various impact energies, the tensile and compression properties after impact are studied. Meanwhile, by comparing the changes of the specimens after impact and nonimpact, the fracture process, fracture modes, and residual strength are investigated. The results indicate that the residual tensile strength after impact reduces greatly, compared with the nonimpact material, by about 25%–45%, while the compression strength reduces slightly. The residual strength of tension and compression illustrates that low-energy impact effect on the structural integrity must be given priority in the thermal protection structure design of astronautics and aeronautics.

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